Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A separator roll, comprising: a separator core; a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core; and a multilayer label attached to an outer layer surface of the nonaqueous electrolyte secondary battery separator, the multilayer label including a plurality of film bases disposed on top of each other, the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.
Battery manufacturing technology. This invention addresses the need for effective handling and identification of secondary battery separators during production and assembly. The solution is a separator roll designed for nonaqueous electrolyte secondary batteries. It comprises a central separator core. Wound around this core, and in contact with its outer surface, is a nonaqueous electrolyte secondary battery separator. A key feature is a multilayer label attached to the outermost surface of the separator. This label is constructed from multiple film bases stacked on top of each other. Importantly, at least one of these film bases is designed to be detachable from another film base within the multilayer structure. This detachable feature likely facilitates selective removal or manipulation of label layers for identification, tracking, or application purposes during battery manufacturing processes.
2. The separator roll according to claim 1 , wherein: the plurality of film bases include (i) a first film base to be bonded to the outer layer surface and (ii) a second film base disposed detachably on the first film base and showing information on the nonaqueous electrolyte secondary battery separator; and a front surface of the first film base is partially exposed, the front surface being on a side of the first film base on which side the second film base is present.
A separator roll for nonaqueous electrolyte secondary batteries includes a plurality of film bases. The film bases comprise a first film base bonded to an outer layer surface of the separator and a second film base detachably disposed on the first film base. The second film base displays information about the separator, such as specifications or manufacturing details. The front surface of the first film base, which faces the second film base, is partially exposed. This design allows the second film base to be easily removed while maintaining the structural integrity of the first film base. The exposed portion of the first film base ensures proper bonding to the outer layer surface while the second film base provides temporary information that can be removed as needed. This configuration improves manufacturing efficiency by allowing for easy identification and handling of the separator during production and assembly. The detachable second film base prevents contamination or interference with the separator's performance once the information is no longer required.
3. The separator roll according to claim 2 , wherein the multilayer label has an end at which a residue-removed portion is present, the residue-removed portion being a portion at which the front surface of the first film base is partially exposed.
This invention relates to a separator roll used in labeling systems, specifically for handling multilayer labels with a residue-removed portion. The problem addressed is the difficulty in cleanly separating multilayer labels from their backing material without leaving adhesive residue on the label's front surface. The separator roll includes a cylindrical body with a surface designed to facilitate the separation of the label from its backing material. The multilayer label has an end where a residue-removed portion is present, exposing part of the front surface of the first film base. This exposed portion ensures that when the label is peeled off, adhesive residue does not remain on the label's front surface, improving label application quality. The separator roll's design and the label's residue-removed portion work together to prevent adhesive transfer, ensuring clean separation and proper labeling. This solution is particularly useful in automated labeling systems where consistent and residue-free label application is critical.
4. The separator roll according to claim 2 , wherein the first film base has a color different from a color of the second film base.
The invention relates to a separator roll used in manufacturing processes, particularly for separating layers of film material. The problem addressed is the difficulty in visually distinguishing between different film layers during production, which can lead to errors in alignment or separation. The separator roll includes a first film base and a second film base, each designed to engage with different layers of material. To enhance visibility and prevent misalignment, the first film base is colored differently from the second film base. This color differentiation allows operators to quickly identify and correctly position the film layers, improving production accuracy and efficiency. The separator roll may also include a core and a coating layer to facilitate smooth operation and reduce wear. The core provides structural support, while the coating layer ensures consistent contact with the film material. The color contrast between the film bases ensures that operators can easily verify proper alignment during the separation process, reducing defects and downtime. This solution is particularly useful in high-precision manufacturing environments where visual identification of components is critical.
5. The separator roll according to claim 2 , wherein the nonaqueous electrolyte secondary battery separator has a color different from a color of the first film base.
A separator roll for nonaqueous electrolyte secondary batteries addresses the challenge of visually distinguishing the separator from other components during manufacturing and assembly. The separator roll includes a first film base and a nonaqueous electrolyte secondary battery separator. The separator itself is designed with a distinct color that contrasts with the color of the first film base. This color differentiation ensures clear visual identification, reducing errors in handling and assembly processes. The separator roll is structured to maintain the integrity and performance of the separator while providing an easily recognizable feature for quality control and operational efficiency. The contrasting color helps operators quickly verify the correct placement and alignment of the separator, minimizing defects and improving production yield. This solution is particularly valuable in automated or high-speed manufacturing environments where visual inspection is critical. The separator roll may also include additional layers or coatings to enhance its functional properties, such as thermal stability or electrolyte resistance, while maintaining the visual distinction. The overall design ensures that the separator remains compatible with standard battery manufacturing processes while addressing the need for visual differentiation.
6. The separator roll according to claim 1 , wherein the multilayer label is attached so as to extend across a longitudinal end of the nonaqueous electrolyte secondary battery separator which longitudinal end is at the outer layer surface.
Technical Summary: This invention relates to a separator roll for nonaqueous electrolyte secondary batteries, specifically addressing the attachment of multilayer labels to the separator material. The problem being solved involves ensuring proper labeling of the separator while maintaining its structural integrity and functionality during battery manufacturing. The separator roll comprises a nonaqueous electrolyte secondary battery separator with a multilayer label attached to its outer layer surface. The label extends across a longitudinal end of the separator, ensuring visibility and identification without compromising the separator's performance. The label attachment method is designed to prevent delamination or damage to the separator during handling and battery assembly. The separator itself is a critical component in nonaqueous electrolyte secondary batteries, such as lithium-ion batteries, where it prevents short circuits by separating the anode and cathode while allowing ion flow. The multilayer label provides necessary identification and tracking information for quality control and manufacturing processes. The label's placement at the longitudinal end ensures it does not interfere with the separator's active area, maintaining optimal battery performance. This invention improves upon existing separator labeling techniques by providing a more durable and reliable attachment method, reducing the risk of label detachment or damage during battery production. The solution is particularly useful in high-volume manufacturing environments where consistent labeling is essential for traceability and quality assurance.
7. The separator roll according to claim 1 , further comprising: a fastening sticker configured to fasten a longitudinal end of the nonaqueous electrolyte secondary battery separator which longitudinal end is at the outer layer surface.
The invention relates to a separator roll for nonaqueous electrolyte secondary batteries, specifically addressing the need for improved handling and fastening of the separator material during manufacturing. The separator roll includes a core and an outer layer surface where the separator material is wound. The separator material is a thin, porous membrane used in battery production to prevent short circuits while allowing ion flow. The invention enhances the separator roll by incorporating a fastening sticker on the outer layer surface. This sticker is designed to secure the longitudinal end of the separator material, preventing unwinding or misalignment during storage or transport. The fastening sticker ensures the separator remains properly positioned, reducing defects and improving production efficiency. The sticker may be adhesive or mechanically fastened, depending on the material and application requirements. This modification is particularly useful in automated battery manufacturing processes where precise handling of the separator is critical. The invention simplifies the production workflow by eliminating the need for additional securing mechanisms, such as clamps or tapes, applied separately. The separator roll with the integrated fastening sticker ensures consistent quality and reduces material waste.
8. A method for producing a separator roll including a separator core and a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core, the method comprising attaching a multilayer label to an outer layer surface of the nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with the outer peripheral surface, the multilayer label including a plurality of film bases disposed on top of each other, the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.
This invention relates to a method for producing a separator roll used in nonaqueous electrolyte secondary batteries, such as lithium-ion batteries. The separator roll includes a separator core and a separator material wound around the core, with the separator material being in direct contact with the outer surface of the core. The method involves attaching a multilayer label to the outermost layer of the wound separator material. The label consists of multiple film layers stacked on top of each other, where at least one of the film layers can be detached from the others. This detachable feature allows for selective removal of one or more layers without disturbing the underlying layers, which can be useful for identifying, tracking, or protecting the separator material during manufacturing, storage, or handling. The multilayer label may include information such as product specifications, manufacturing details, or handling instructions, and the detachable layers can be removed as needed, such as during different stages of production or when transferring the separator roll to another process. The invention aims to improve the organization, traceability, and protection of separator rolls in battery manufacturing.
9. A method for checking a label attached to a separator roll including a separator core and a nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with an outer peripheral surface of the separator core, the method comprising checking whether a multilayer label is attached to an outer layer surface of the nonaqueous electrolyte secondary battery separator wound around the separator core and in contact with the outer peripheral surface, the multilayer label including a plurality of film bases disposed on top of each other, the plurality of film bases including at least one film base detachable from another film base included in the plurality of film bases.
This invention relates to a method for verifying the presence of a multilayer label on a separator roll used in nonaqueous electrolyte secondary batteries. The separator roll consists of a separator material wound around a core, with the label attached to the outer surface of the wound separator. The label is multilayered, comprising multiple film bases stacked on top of each other, where at least one film base is detachable from another. The method involves checking whether this specific multilayer label structure is present on the separator roll. The invention addresses the need for reliable label identification in battery manufacturing, ensuring proper labeling for quality control and traceability. The detachable film base feature allows for selective removal of label layers, which may be useful for sequential information access or tamper-evident applications. The method ensures that the label meets design specifications, preventing mislabeling or improper attachment that could affect battery performance or safety. The focus is on verifying the label's multilayer construction and detachable properties, which are critical for maintaining product integrity in battery production.
Unknown
September 17, 2019
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